body,html
  height 100%
  margin 0
  padding 0
  font-family: "PingFang SC","STHeitiSC-Light","Helvetica-Light", arial, sans-serif
  font-size: 16px
.clearfix
  // display: inline-block
  // &:after
    // display: block
    // content: "."
    // height: 0
    // line-height: 0
    // clear: both
    // visibility: hidden
@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
  .border-1px
    &::after
      -webkit-transform: scaleY(0.7)
      transform: scaleY(0.7)

@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
  .border-1px
    &::after
      -webkit-transform: scaleY(0.5)
      transform: scaleY(0.5)
